vendor address:

All MACs beginning with 00-12-BF are registered by Arcadyan Technology Corporation in 4f, No. 9, Park Avenue Ii Science-Based Industrial Park Hsinchu 300 Taiwan, Province Of China. One can find support for your hardware on the manufacturer homepage http://www.arcadyan.com/.
This registered set of 16 blocks is able to address max. 268.435.456 devices.